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Load image into Gallery viewer, Stan's Flow MK4 Rim - 27.5, Disc, Black, 28H
Load image into Gallery viewer, Stan's Flow MK4 Rim - 27.5, Disc, Black, 28H
Load image into Gallery viewer, Stan's Flow MK4 Rim - 27.5, Disc, Black, 28H

SKU: RIMS1661

Stan's Flow MK4 27.5" Disc Brake MTB Rim - Durable 6069 Aluminum, Tubeless Ready, Reinforced Spoke Bed, BST Asymmetric Design, Optimized for Trail Control and Tire Traction, Black, Welded Joint, 28H

Regular price $99.44
$129.00 Sale price $99.44 Regular price
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Description
Specifications

Upgrade your trail riding with the Stan's Flow MK4 Rim - the industry-leading 27.5-inch disc rim engineered for durability, control, and easy tubeless setup. Built from premium 6069 aluminum with a welded joint and reinforced spoke bed, this rim offers exceptional strength and resilience for aggressive trail and mountain biking adventures.

Materials & Construction

Crafted from high-grade 6069 aluminum, the Stan's Flow MK4 Rim features a welded joint for increased durability and longevity. Its reinforced spoke bed enhances impact resistance, ensuring your wheel withstands rugged terrain and aggressive riding conditions. The alloy construction provides an optimal balance between weight and strength, making it ideal for demanding mountain biking disciplines.

Performance & Engineering

Designed with an Innovative BST Asymmetric Shape, the Flow MK4 balances resistance to dents and tire bead retention across both sides of the rim, even under extreme conditions. The 30mm internal width optimizes tire profile, traction, and control for 2.3-2.6" tires, delivering superior grip and stability on the trail. The 18.9mm rim depth offers a perfect combination of weight savings and strength for responsive handling and confidence-inspiring control.

Components & Technology

Featuring Stan's patented Bead Socket Technology (BST), the Flow MK4 offers the easiest tubeless setup and the most reliable airtight performance, reducing setup time and minimizing regular maintenance. The rim is designed specifically for disc brake systems, with 28 spoke holes for a balanced, durable wheel build. Its short 32-40mm Presta valve length ensures a secure fit with most tubeless-compatible tires and tubes.

Style & Use Case

Available in sleek black, the Stan's Flow MK4 Rim embodies a minimalist yet aggressive aesthetic that complements any mountain bike build. Ideal for trail riders, enduro racers, and mountain biking enthusiasts seeking a reliable, high-performance rim, it excels on steep descents, technical climbs, and fast singletrack sections. Its tubeless-ready feature reduces flats and enhances cornering grip, making it a versatile choice for all-mountain riding.

Innovative & Differentiating Features

- Reinforced spoke bed with asymmetric design for increased durability

- BST Asymmetric shape for balanced tire bead retention and resistance

- Welded alloy construction for longevity and impact resistance

- Low-profile 30mm internal width for optimized tire support and control

- Tubeless-ready for seamless tubeless conversion, reducing flats and enhancing traction

- 3-year warranty with 1-year crash replacement for peace of mind

Specifications:

- Rim Diameter: 27.5" (584 / 650b)

- Internal Width: 30mm (optimized for 2.3-2.6" tires)

- External Width: 33.6mm

- Rim Depth: 18.9mm

- Material: Alloy (6069 aluminum)

- Construction: Welded joint with reinforced spoke bed

- Hub Compatibility: Disc brakes only, 28 spoke holes

- Valve Type: Presta, Short 32-40mm length

- Weight: Approximately 487 grams per rim

- Color: Black with optional gray accents

Enhance your mountain bike's performance with the Stan's Flow MK4 Rim-where innovative engineering meets durability and control. Whether tackling technical trails or race conditions, this rim provides the reliability and performance you demand.

  • Durable 6069 aluminum construction with welded joint and reinforced spoke bed ensures maximum strength and longevity on aggressive trail rides and technical descents.
  • Innovative BST Asymmetric design optimizes rim shape for balanced resistance against dents and offers superior tire bead retention, enhancing tubeless setup reliability even under extreme conditions.
  • Features Stan's patented Bead Socket Technology for effortless tubeless inflation, providing a secure, airtight seal that reduces setup time and minimizes flats during challenging rides.
  • Designed with a 30mm internal width, this rim enhances tire shape and traction for 2.3-2.6" tires, delivering exceptional control, grip, and confidence on versatile trail and enduro terrains.
  • Engineered specifically for disc brake compatibility with a robust welded rim joint, lightweight at just 487 grams, and suitable for 27.5-inch wheel setups, making it ideal for trail, all-mountain, and enduro cyclists seeking high performance and durability.
Brake CompatibilityDisc Only
Rim Width (External)33.6
Rim Width (Internal)30
Brake TrackNone
Manufacturer Spec ERD (mm)561
ValvePresta
Valve LengthShort 32-40mm
ColorBlack
Weight487
Wheel Size27.5"
Defined ColorGray
ISO Diameter584 / 650b / 27.5"
EyeletsNone
Hub Drilling28
Rim JointWelded
Rim Depth (mm)18.9
Rim MaterialAlloy
Tire TypeTubeless Ready
Rim Center Offset (mm)3
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